Young thinkers can build unbelievable ball tracks with this simple, stacking plank system. Create ramps, funnels, chutes and crazy structures. Then find out if the ball rolls as expected. Fostering creativity and experimentation, KEVA planks build an early understanding of proportion and balance, while teaching basic principles of physics and engineering. No glue or connectors, just loads of constructive fun! Both sets include 2 lightweight balls an instruction book with ideas. Contraptions planks are made from pine. Ages 7 and up.

Young thinkers can build unbelievable ball tracks with this simple, stacking plank system. Create ramps, funnels, chutes and crazy structures. Then find out if the ball rolls as expected. Fostering creativity and experimentation, KEVA planks build an early understanding of proportion and balance, while teaching basic principles of physics and engineering. No glue or connectors, just loads of constructive fun! Both sets include 2 lightweight balls an instruction book with ideas. Contraptions planks are made from pine. Ages 7 and up.

Follow the instructions to build a host of Lego contraptions, like the barbell spinner, flag-waving marble kicker, and more. Then put them in any order to create an amazing chain reaction that accomplishes a simple task. Children will learn some of the physics behind the fun, as well as the skills they need to make their own machines. Comes with a 78-page book, 33 Lego elements, 6 Lego balls, 6 ft. of string, 8 paper ramps, 2 paper pop-up signs, 1 paper funnel ramp, 1 paper flag, 1 paper bucket and 1 platform. For ages 7 and up.

Q-Ba-Maze 2.0 is a unique system of colorful cubes that interlock to form a marble run. The big difference? You can create marble maze sculptures in the form of animals, geometric shapes or any other design! Configurations are unlimited, allowing for unpredictable action when steel balls travel the various routes. It's a live demonstration of probability, physics and art, all in one! Starter Box sets contains 36 cubes and 14 balls. Big Box sets include 72 cubes in 5 different colors, plus 20 steel balls. Marble Catchers includes 4 marble catchers for quick reloading and cleanup. Use cubes from all the sets to create even bigger structures. Ages 5 and up.W1

Q-Ba-Maze 2.0 is a unique system of colorful cubes that interlock to form a marble run. The big difference? You can create marble maze sculptures in the form of animals, geometric shapes or any other design! Configurations are unlimited, allowing for unpredictable action when steel balls travel the various routes. It's a live demonstration of probability, physics and art, all in one! Starter Box sets contains 36 cubes and 14 balls. Big Box sets include 72 cubes in 5 different colors, plus 20 steel balls. Marble Catchers includes 4 marble catchers for quick reloading and cleanup. Use cubes from all the sets to create even bigger structures. Ages 5 and up.W1

Q-Ba-Maze 2.0 is a unique system of colorful cubes that interlock to form a marble run. The big difference? You can create marble maze sculptures in the form of animals, geometric shapes or any other design! Configurations are unlimited, allowing for unpredictable action when steel balls travel the various routes. It's a live demonstration of probability, physics and art, all in one! Starter Box sets contains 36 cubes and 14 balls. Big Box sets include 72 cubes in 5 different colors, plus 20 steel balls. Marble Catchers includes 4 marble catchers for quick reloading and cleanup. Use cubes from all the sets to create even bigger structures. Ages 5 and up.W1

Q-Ba-Maze 2.0 is a unique system of colorful cubes that interlock to form a marble run. The big difference? You can create marble maze sculptures in the form of animals, geometric shapes or any other design! Configurations are unlimited, allowing for unpredictable action when steel balls travel the various routes. It's a live demonstration of probability, physics and art, all in one! Starter Box sets contains 36 cubes and 14 balls. Big Box sets include 72 cubes in 5 different colors, plus 20 steel balls. Marble Catchers includes 4 marble catchers for quick reloading and cleanup. Use cubes from all the sets to create even bigger structures. Ages 5 and up.W1

Q-Ba-Maze 2.0 is a unique system of colorful cubes that interlock to form a marble run. The big difference? You can create marble maze sculptures in the form of animals, geometric shapes or any other design! Configurations are unlimited, allowing for unpredictable action when steel balls travel the various routes. It's a live demonstration of probability, physics and art, all in one! Starter Box sets contains 36 cubes and 14 balls. Big Box sets include 72 cubes in 5 different colors, plus 20 steel balls. Marble Catchers includes 4 marble catchers for quick reloading and cleanup. Use cubes from all the sets to create even bigger structures. Ages 5 and up.W1

This puzzle emphasizes spatial reasoning and abstract thinking. Lay down a puzzle card, solve the challenge by making a loop, and watch the board light up! Cool Circuits has 40 different challenges ranging from student to expert. Includes light up board plus eight fluorescent, 3-D puzzle pieces. Ages 8 and up.

Make more than 300 projects with Elenco's Electronic Snap Circuits-make learning electronics easy and fun! Just follow the colorful pictures in the manual and build exciting projects such as FM radios, digital voice recorders, AM radios, burglar alarms, doorbells and much more! You can even play electronic games with your friends. All parts are mounted on plastic modules and snap together with ease. Enjoy hours of educational fun while learning about electronics. No tools required. Uses 2 "AA" batteries, not included. Ages 8 and up.

Measure and explore volume and make comparisons of solids and liquids using this sturdy bucket balance with lids. Calibrated, clear buckets are labeled with measurements and can hold solids or up to 400ml of liquid. Easy-pour spout on removable buckets makes measuring liquids mess-free. Lids can be used as platforms, and the built-in drawer is perfect for storing weights. Balance measures 16-1/2 x 6-1/2 x 6". Grades K and up.

Enjoy hours of educational fun while learning about electronics. Watch and be amazed at what your music can do with the new Snap Circuits LIGHT. Connect your iPod or any MP3 player and enjoy your music as the lights change to the beat. The strobe light with spinning patterns will amaze you with its visual effects. All parts are mounted on plastic modules and snap together with ease. Includes an infrared detector; strobe light with spinning patterns; color changing LED; glow-in-the-dark flying fan; strobe integrated circuit (IC); fiber optic communication; color organ controlled by iPod, MP3 player, voice or finger; plus more. Contains over 55 parts to build more than 175 projects. Requires 4 AA batteries, not included. For ages 8 and up.W1

Learn about electric circuits while building and playing fun games. Contains more than 200 projects, including more than 20 games. Features 35 parts, such as a light projecting arcade show, programmable word fan, tri-color light orb and more. For ages 8 and up. Requires 3 AA batteries, sold separately.W1

Learn about electricity as you build 165 projects relating to motion. All pieces are mounted on plastic modules and snap together easily. Build a motion detector light, mini car, light plane, crawler, lighthouse, merry-go-round and more. Requires one 9 volt battery and four AA batteries, not included. For ages 8 and up.W1

Build a real working radio! All pieces are mounted on plastic modules and snap together easily. Kit includes all the hardware needed - just follow the instructions and the colored diagram. Once you have built the radio, you can take it apart and build up to 3 more devices: power amplifier, electric kazoo and trombone. Terrific for learning about electricity and how things work. Requires 3 AA batteries, not included. For ages 8 and up.W1

Kids love to build robots—and now they can build their own ZOOB-Bots, complete with motors and wheels to let their creations roll! ZOOB pieces snap, click, and pop together 20 different ways, so there's no limit to what kids can build. Plus, they move after being put together, so kids can play with their creations instead of just looking at them. ZOOB is great for boys and for girls, and its open-ended building encourages kids to learn, explore and create using their imagination. Includes 49 ZOOB pieces, 2 wheels with tires, 2 wheels with tires and pull-back motor assembly, 1 light-up ZOOB piece and 1 replaceable battery. Also includes instructions for 4 ZOOB-Bots, plus dozens of basic creations. For ages 6 and up. Manufacturer's lifetime guarantee.W1

Learn about the properties of electricity as you build different circuits to power a light bulb. All pieces are mounted on plastic modules and snap together easily. Projects include lamp current, batteries in a series, triple voltage divider, loop, current divider and more. Requires 3 AA batteries, not included. For ages 8 and up.W1

Use the supplies in this kit to build 4 different inventions: spinning motor, clicking telegraph, light flashing generator and a real radio. Comes with a 40-page book that includes step-by-step directions and pictures so that children can work without individual attention, plus features illustrations so that they learn how and why the inventions work. Each kit requires one D-cell battery, not included. For ages 8 and up.

Snap Circuits SOUND is the newest addition to the Snap Circuits line up. Learn all about sound and how it is made and heard. Build more the 185 projects to help demonstrate the principles of sound. Includes keyboard with optical theremin, echo effects, sound energy demonstration and color changing light. Offers the ability to record voice or music and play it back at different speeds. Plus, connect to your smart phone and analyze sounds with apps. For ages 8 and up. Requires 4 AA batteries (not included).Quantities limited.

The best of crafts and construction in one! This set features more than 275 parts that kids can use to build a whole host of creations. Contains washers, axles, joiners, belts, tires, stickers, pom poms, springs and more. Online videos offer instructions for making different inventions, too. Encourages spatial and engineering skills (prototyping), plus builds confidence in problem solving. For ages 6 and up.W1

A family game of tricky hangs and steady hands! Try this hanging balance game and you'll be hooked! Suspend comes with 24 notched, rubber-tipped wire pieces to hang from a tabletop stand. Sound easy? Try adding another piece! Each time a bar is added, the balance shifts, the difficulty changes and the incredible midair sculpture transforms. Can you add all your game pieces without making it fall? This tricky game for 1-4 players is a test of steady nerves and steady hands. Ages 8 and up.

We are in the DNA age - discoveries in molecular biology are among the most important scientific advancements of our time. Make the DNA revolution accessible to your kids! Features 18 activites including extracting DNA from a fruit, building a double helix, solving a chromosome puzzle, doing a gene analysis, extracting your own DNA and more! 40-page book, for ages 8 and up.

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